“The new conspiracism’s characteristic forms—bare assertion, ominous questions, and innuendo—are permissive. They have the appeal of elasticity and irresponsibility. Because of its vagueness, “a lot of people are saying” can embrace an expanding universe of conjured plots and public enemies. And “just asking questions” evades ownership of the claim. The author of any single conspiracist charge is often indeterminate; charges can arise spontaneously as a tease on a radio talk show or an anonymous throwaway on some fringe website.”